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作者机构:Department of Agricultural EconomicQaemshahr BranchIslamic Azad UniversityIran Department of Biosystems EngineeringFerdowsi University of MashhadMashhadIran Department of Biosystems EngineeringUniversity of TabrizTabrizIran
出 版 物:《Information Processing in Agriculture》 (农业信息处理(英文))
年 卷 期:2020年第7卷第1期
页 面:30-40页
核心收录:
学科分类:08[工学] 0828[工学-农业工程] 09[农学] 082801[工学-农业机械化工程] 0901[农学-作物学]
主 题:Rainfed wheat Economic modeling Multiple linear regression model Production costs
摘 要:Mathematical modeling of economic indices is a challenging topic in crop production *** present study aimed to model the economic indices of mechanized and semimechanized rainfed wheat production systems using various multiple linear regression *** study area was Behshahr County located in the east of Mazandaran Province,Northern *** statistical population included all wheat producers in Behshahr County in 2016/17 crop *** input variables were human labor,machinery,diesel fuel,chemical(chemical fertilizers and chemical pesticides)costs,and the income was considered to be the *** results showed that the cost of wheat production in the semimechanized system was higher than that of the mechanized *** both systems,the highest cost was related to agricultural machinery ***,seed cost was lower in the mechanized system than that of the semi-mechanized *** net return indicator was 993.68$ha1 and 626.71$ha1 for the mechanized and semi-mechanized systems,*** average benefit to cost ratio was 3.46 and 2.40 for the mechanized and semi-mechanized systems,respectively,demonstrating the greater profitability of the mechanized *** results of the evaluation of five types of regression models including the Cobb-Douglas,linear,2FI,quadratic and pure-quadratic for the mechanized and semi-mechanized production systems indicated that in the developed Cobb-Douglas model,the R2-value was higher than that of the quadratic model while RMSE and MAPE of the quadratic model were determined to be smaller than that of the Cobb-Douglas ***,the best model to investigate the relationship between input costs and the income of wheat production in both mechanized and semi-mechanized systems was the quadratic model.